A recent study of Pseudomonas spoilage microorganisms isolated from dairy products in Spain identified the presence of highly biofilm-forming, antimicrobial-resistant (AMR) strains, presenting challenges for dairy industry control strategies, and posing the risk of transfer of AMR genes to pathogenic foodborne bacteria.
This episode of Food Safety Five discusses two recent scientific studies that are advancing the food industry’s understanding of and ability to address Listeria monocytogenes, including new findings about the pathogen’s behavior in biofilms and a developing rapid detection method.
A Boston University study has shown that Escherichia coli exposed to microplastics form strong biofilms and develop increased levels of antimicrobial resistance (AMR) and multi-drug resistance.
A new study by USDA researchers has shown that long-read whole genome sequencing (WGS) could detect Salmonella attachment to food-contact surfaces earlier than traditional culture-based methods, allowing for sanitation interventions to be applied before the maturation of robust and difficult-to-remove biofilms.
A recent study demonstrated the ability of Listeria monocytogenes to colonize a preexisting multispecies biofilm within a matter of hours and survive within the biofilm over time, without significantly altering the community structure or the overall matrix composition.
Filling a critical knowledge gap in light of recent outbreaks and recalls associated with low-moisture foods, a study led by National University of Singapore researchers has characterized dry surface Salmonella biofilms and developed a fit-for-purpose, antibiofilm, waterless sanitization protocol for the low-moisture food industry.
Researchers are pointing to the food safety and public health threat of microplastics in wastewater, which can serve as a vehicle for pathogenic biofilm communities and antibiotics, introducing these hazards to the environment and crops, and even contributing to antimicrobial resistance (AMR).
A recent study conducted by scientists from the Quadram Institute and the UK Health Security Agency has revealed that, despite cleaning, Listeria monocytogenes are able to persist in ready-to-eat (RTE) food production environments, supported by diverse bacterial populations that also remain stable over time.
Understanding the structure and function of biofilms is essential for developing effective strategies to control microbial biofilm formation, mitigate biofilm-related risks, and harness the beneficial properties of biofilms for various applications.
A recent study has demonstrated the protection that multispecies biofilms provide to Listeria monocytogenes against sanitizers, and could help inform more effective sanitation procedures in food processing environments.
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